stat5b proteins (Santa Cruz Biotechnology)
Structured Review

Stat5b Proteins, supplied by Santa Cruz Biotechnology, used in various techniques. Bioz Stars score: 94/100, based on 3 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/result/stat5b proteins/product/Santa Cruz Biotechnology
Average 94 stars, based on 3 article reviews
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1) Product Images from "Disease-Associated Mutations of the STAT5B SH2 Domain Regulate Cytokine-Driven Enhancer Function and Mammary Development"
Article Title: Disease-Associated Mutations of the STAT5B SH2 Domain Regulate Cytokine-Driven Enhancer Function and Mammary Development
Journal: Journal of Mammary Gland Biology and Neoplasia
doi: 10.1007/s10911-025-09582-8
Figure Legend Snippet: STAT5B mutations at Y665 in the mouse genome. A Schematic illustration of the STAT5B protein domains. Amino acid locations of the variants are highlighted. B Three-dimensional model of STAT5B protein structure presenting the location of the Y665 residue mutated in the mouse genome. C Sanger sequencing chromatograms showing Y665 (wild-type, WT) and the introduction of SNPs resulting in the two missense mutations, Stat5b Y665 F (Y665F) and Stat5b Y665H (Y665H) mutants. The red shade indicates the altered codons converting Y665 to Y665F and Y665H, respectively. D Number and percentage of offspring from intercrossed heterozygote parents (Y665H, n = 301; Y665F, n = 543). The statistical relationship between the percentage and the expected Mendelian ratios was assessed using a Chi-square test. E Dot plot presenting the weight of individual mice in each group from 6, 7, 8 and 9 weeks of age. Wild-type mice are from litters weaned from heterozygous Stat5b Y665H (gray) and Stat5b Y665F (black) dams. Results are presented as the means ± SEM of independent biological replicates (Y665, n = 13; Y665H, n = 6; Y665F, n = 17). A two-way ANOVA followed by Tukey’s multiple comparisons test was used to evaluate the statistical significance of differences between groups. ** p < 0.001, **** p < 0.0001
Techniques Used: Residue, Sequencing
Figure Legend Snippet: Impaired alveolar development in STAT5B Y665 mutant mice at day 18.5 of pregnancy. A Sections of mammary tissue stained with hematoxylin and eosin at day 18.5 of pregnancy with high magnification (x400, Scale bars, 100 μm). The arrow and Asterix indicates alveoli and lumen. Y665, n = 3; Y665H, n = 3; Y665F, n = 4. 50–100 of the alveolar architecture on each slide was quantitatively analyzed using the ImageJ software, with the results visualized through dot plots. (a) milk-secreting alveoli; (b) alveolar lumen; (c) alveolar epithelial cells. B , D and E Heatmaps showing fold activity of significantly regulated genes of milk proteins in red, enzymes in green, fat metabolism in gray, membrane transporters in blue, transcription factors in black (B), cell marker genes (D) and skin-related genes (E) in STAT5B Y665H and STAT5B Y665F mutants compared to WT (RNA-seq; Y665, n = 3; Y665H, n = 3; Y665F, n = 4). C Dot plots with the normalized read counts from RNA-seq to mRNA levels of Stat5 genes controlled by autoregulatory enhancer. Results are shown as the means ± SEM of independent biological replicates (Y665, n = 3; Y665H, n = 3). The Benjamini-Hochberg adjusted p -value was used for significance. *** p < 0.0001, **** p < 0.0001
Techniques Used: Mutagenesis, Staining, Software, Activity Assay, Membrane, Marker, RNA Sequencing
Figure Legend Snippet: Nuclear localization of STAT5A and STAT5B in STAT5B Y665 mutant mice. Staining of STAT5A and STAT5B proteins at day 18.5 of the first pregnancy with high magnification (x10 and x400, Scale bars, 100 μm). The arrow indicates alveolar lumen ( a ), alveolar epithelial cells ( b ), fibroblasts ( c ) and ( d ) fat
Techniques Used: Mutagenesis, Staining
Figure Legend Snippet: Genomic features of the genes regulated by STAT5B Y665 mutations. A Coverage plots displaying the patterns of H3K27ac marks and STAT5B and STAT5A binding on 440 mammary-specific super-enhancers at day 18.5 of pregnancy. Black, Y665; blue, Y665H; red, Y665F. B Binding of STAT5B and NFIB, H3K27ac, and Pol II at gene loci of milk protein genes controlled by mammary-specific super-enhancers, transporter genes, and skin genes in mammary tissue of wild type (Y665) and Stat5b Y665H (Y665H) mice at day 18.5 of pregnancy. C STAT5B and NFIB binding, H3K27ac and Pol II loading at gene loci of milk protein genes controlled by mammary-specific super-enhancers, transporter gene and skin gene in mammary tissue of Y665 and Stat5b Y665F (Y665F) mice. Y665, n = 2; Y665H, n = 2; Y665F, n = 2
Techniques Used: Binding Assay
Figure Legend Snippet: Alveolar development of STAT5B Y665F mutants at mid-pregnancy. A Sections of mammary tissue stained with hematoxylin and eosin at day 13.5 of pregnancy with high magnification (x400, Scale bars, 100 μm). The arrow indicates alveoli. Y665, n = 3; Y665F, n = 4. The alveolar architecture was quantitatively analyzed using the ImageJ software, with the results visualized through dot plots. (a) milk-secreting alveoli; (b) alveolar lumen; (c) alveolar epithelial cells. B Bar graphs showing fold activity of genes of milk proteins, transporters and transcription factors in STAT5B Y665F (Y665F) mice compared to wild type (Y665) (RAN-seq; Y665, n = 3; Y665F, n = 4). C Heatmaps presenting fold activity of milk protein genes in red, transporter genes in blue, transcription factors in black (left) and skin genes (right) in STAT5B Y665F mice at day 13.5 of pregnancy (presented as p13) compared to WT at day 18.5 of pregnancy (presented as p18) (RAN-seq; Y665 at p18, n = 3; Y665F at p13, n = 4). D Binding of STAT5B and NFIB, H3K27ac, and Pol II at gene loci of milk protein genes controlled by mammary-specific super-enhancers in mammary tissue of Y665 and Y665F mice at day 13.5 of pregnancy. Y665, n = 2; Y665F, n = 2
Techniques Used: Staining, Software, Activity Assay, Binding Assay
Figure Legend Snippet: Partial activation of mammary function and lactation in STAT5B Y665H mice after the second pregnancy. A Body weight of pups at day ten of lactation (L10) after the second pregnancy of homozygous Stat5b Y665H mice and after the first pregnancy of heterozygous Stat5b Y665H mice. The weight of pups from 3–4 females was measured and normalized by the number of pups. A t -test was utilized to evaluate the statistical significance between pups from homozygous females at second pregnancy and heterozygous females at first pregnancy. Homozygous Stat5b Y665H mice, n = 4 cages; heterozygous Stat5b Y665H mice, n = 3 cages. * p < 0.05. B Expression of representative mammary genes was measured in mammary tissue of Y665 (WT) mice collected at day 10 of lactation (L10), and of STAT5B Y665H mice at L10 after the second pregnancy by RNA-seq (Y665, n = 3; Y665H, n = 4). The p18 data (Fig. ) is presented alongside the L10 data to highlight the relative reduction in gene expression between p18 and L10 in Y665H mice. C Binding of STAT5A and STAT5B, H3K27ac, and Pol II at Stat5 and Wap super-enhancer loci controlled by prolactin in mammary tissue of Y665 and Y665H mice at day 10 of lactation. The Socs2 locus was presented as a ChIP-seq control. Y665, n = 2; Y665H, n = 2. D Sections of mammary tissue stained with hematoxylin and eosin at day 10 of lactation after the second pregnancy with high magnification (x400, Scale bars, 100 μm). The arrow and Asterix indicates alveoli and lumen. Y665, n = 1; Y665H, n = 3. The alveolar architecture was quantitatively analyzed using the ImageJ software, with the results visualized through dot plots. (a) milk-secreting alveoli; (b) alveolar lumen; (c) alveolar epithelial cells
Techniques Used: Activation Assay, Expressing, RNA Sequencing, Gene Expression, Binding Assay, ChIP-sequencing, Control, Staining, Software
Figure Legend Snippet: Regulation of key fat metabolic genes. A-B Dot plots with the normalized read counts from RNA-seq to mRNA levels of Olah and Fabp3 genes at virgin and L10 of wild type mice (A) and at p18 of wild type and Y665 mutant mice (B). Results are shown as the means ± SEM of independent biological replicates (WT at virgin, n = 3; WT at L10, n = 4; Y665 at p18, n = 3; Y665H at p18, n = 3). p -values are from 2-way ANOVA followed by Sidak’s multiple comparisons test between WT and mutants. ** p < 0.001, **** p < 0.0001. C Binding of SAT5A and STAT5B, H3K27ac, and Pol II at Olah and Fabp3 gene loci controlled by prolactin in mammary tissue of Y665 and Y665H mice at day 10 of lactation. Y665, n = 2; Y665H, n = 2
Techniques Used: RNA Sequencing, Mutagenesis, Binding Assay
Figure Legend Snippet: Dimerization of STAT5A and STAT5B protein. A Strategy of co-ChIP-seq. STAT5A bound chromatin from mammary tissue of WT mice at day 1 of lactation (L1) was precipitated using STAT5A antibody and eluted from Ig beads. Secondly, STAT5B bound chromatin was precipitated using STAT5B and eluted from the beads. STAT5A motifs from 1st ChIP and STAT5B motifs from 2nd ChIP were identified by sequencing. B Co-ChIP profile at the representative milk protein Wap gene and common STAT target Socs2 gene. C STAT5A and STAT5B binding at gene loci of milk protein Wap gene and common STAT target Socs2 gene in the mammary gland of Y665 (WT) and Y665H mice at day 18.5 of pregnancy (p18). D STAT5A and STAT5B binding in the mammary gland of Y665 (WT) and Y665F mice at day 13.5 of pregnancy (p13)
Techniques Used: ChIP-sequencing, Sequencing, Binding Assay

